{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ASTM C266 - Mix 650g with amount of water as prescribed in...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Times of Setting of Hydraulic-Cement Paste by Gillmore Needles ASTM C-266 Tim Boyer CM 442 Pre-Lab Purpose The purpose of this lab is to provide a standardized method for determining the time of setting hydraulic cement by means of the Gillmore needle Equipment Trowel Mixer, Bowl, Paddle and Scraper Glass Graduates Plane Non-absorptive plates Gillmore Needles – weight about 113.4g and diameter about 2.12mm (initial), weight about 453.6g and diameter about 1.06mm (final) Procedure
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Mix 650g with amount of water as prescribed in C 305 Form specimen into a pat with a flat top and the sides tapering to a thing edge To determine time of setting, hold needles in a vertical position and apply lightly to surface of the pat Post-Lab Test Conditions The test conditions for this procedure were normal. Results Initial set time: 3 hours Final set time: 4 hours Comments The procedure was followed as written and everything proceeded normally....
View Full Document

{[ snackBarMessage ]}